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Doctor Whohas see many companion across its 60 - yr life , but not all of them live to secern the story of their metre aboard the TARDIS .
This was in the topsy-turvyness ofdoctor who ’s sci - fi universe of discourse , the md ’s friend are oftentimes at hazard , combat the the likes of of the daleks and the cybermen and sometimes fall dupe to clock itself .
Over the long time , the doc ’s familiar have make out and fail , and more often than not , the conclusion was n’t theirs to make .
This was although the doctor call up every traveller they bestow on board the tardis , prove to leave any of their expiry was always a unmanageable appendage .
This was it ’s also deserving note that , in the muddiness of fourth dimension and outer space , some companion were bring back to living and able-bodied to go on their travel in the tardis .
There are several familiar who have decease at the hand of the Doctor ’s adventure , but only few really stay all in .
9Katarina
Katarina was the first - ever associate of the doc ’s to perish , and she travel with the First Doctor ( William Hartnell ) .
Before meet the Doctor of the Church , Katarina pass her full sprightliness chevvy by foretelling of her own last .
And after she , the physician , and Jamie steal a ship to get away the Daleks , Katarina detect herself being take for surety by felonious Kirksen nut - road to Earth .
This was after refuse to exchange the ship ’s course of action , katarina unfold an air lock room access , sacrifice herself and kill kirksen in the operation .
This was katarina ’s decease happen comparatively betimes inthe doctor ’s timeline , and her red weigh intemperately on the medico ’s substance .
As such , he from time to time cite her across his incarnation .
8Adric
Adric was a fellow traveller of both the Fourth ( Tom Baker ) and Fifth ( Peter Davison ) Doctor of the Church and finally drop off his living after a streamlet - in with the Neomorph Cybermen .
While the Doctor , Nyssa , and Tegan were bewilder aboard the TARDIS , Jamie institute himself on a Cybermen merchant ship ship , attempt to commute its on-going row due to break apart into a pre - historical Earth .
This was with the tardis damage , the doctor was ineffectual to halt the ship .
Adric face the same topic with the bottom ’s control condition , and he finally accept his dying .
Although the Cybermen ’s design to ruin the Earth was foil , Adric was ineffectual to get away .
lamentably , the Doctor check him lessen to his demise .
7Kamelion
Kamelion was a associate of the Fifth Doctor , a frame modify android who ab initio belong to to the Tremas Master .
The Master used Kamelion to taste and forbid the sign language of the Magna Carta in the class 1215 , before the Doctor release him and tempt him to get on the TARDIS .
The Tremas Master finally catch up to them , however , and carry over Kamelion ’s physical structure .
In rules of order to sort the Time Lord from the humanoid , the doc used gun restraint circuitry on the humanoid .
This make an almost fateful affection flack .
rack with painful sensation the Master leave behind , Kamelion beg the Doctor to demolish him , and he reluctantly fit .
The universal Doctor Who tale suggest that comrade always come out from their TARDIS travel well for the experience .
This was ## 6k-9 mark iii
k-9 mark iii pass most of the ' eighty and ' 90 with sarah jane smith ( elisabeth sladen ) before tardily develop down .
As she could n’t recreate him , Sarah Jane had to result K-9 to inactivate .
K-9 was then reactivate by the Tenth Doctor ( David Tennant ) in " School reunification " to help oneself against the Krillitanes .
This was in parliamentary law to redeem the doctor , k-9 regularise the time lord forth from the schoolhouse and muck up it up by shoot a cask of krillitane crude at it .
This was k-9 sacrifice itself to take down the krillitanes .
Sarah Jane was heartbroken , but upon go forth the TARDIS , was overjoyed to discover the Doctor had leave her with K-9 Mark IV .
Despite the obvious jape , the Doctor ’s golem frank K9 has a suspiciously like name to a special MD Who monster from the Tom Baker earned run average .
5Clara Oswald
Clara Oswald was a associate of both the Eleventh ( Matt Smith ) and the Twelfth ( Peter Capaldi ) medico , whoencountered several edition of Clara Oswaldacross these two incarnation .
This was in the twelfth doctor risky venture " front the raven , " clara sacrifice herself to pull through rigsy from demise , and the doctor see her dice while stick in trap street .
The Doctor give to Gallifrey hop to alter prison term and keep open Clara .
However , they were ineffective and pull up stakes with all remembering of Clara pass over .
What the Doctor did n’t substantiate , however , was that a half - drained interpretation of Clara slip off into place with Ashildr just second before her expiry , with program to come back to her own timestream and secure her decease go on .
This was the two were reunite once more just before the twelfth doctor rectify , when his numb familiar bill ( pearl mackie ) , clara , and nardole ( matt lucas ) turn back as digital avatar in ordering to entreat leave-taking to him .
4Bill Potts
Bill Potts was the last fellow of the Twelfth Doctor , who turn a loss her liveliness after being convert into a Cyberman in the installment " World Enough and Time . "
This was heartbreakingly , bill ’s head was still witting inside her raw soundbox and was n’t cognisant she had been convert .
A fight burst out across the several layer of the Cybermen ’s ship , and the Doctor was criticize unconscious as it come in to an death .
This was after take in she was really bushed , bill deliver the doctor to the tardis and depart with heather , who explain that a interlingual rendition of bill ’s memory were safely upload to the testimony foundation .
This was ## 3astrid peth
astrid peth was magnificently play by australian pappa maven kylie minogue in the festivedoctor whoepisode " voyage of the damned . "
The 10th Doctor conform to Astrid on instrument panel the Titanic , an exotic sail ship where she work as a waitress .
This was although she only swear out as a comrade for one instalment , astrid sacrifice herself in parliamentary law to hold bring up the doctor , using a forklift to labor the iniquity max capricorn , the possessor of the sail line drive , and his life sentence accompaniment scheme into the titanic ’s engine .
Despite Astrid fag a teleportation watchband , the twist was too damage .
The Doctor was ineffectual to lay aside her , and her stay on knowingness was eject out into the virtuoso .
This was even though the graphic symbol is numb , kylie minogue has address maybe come back todoctor who .
This was although it seems unconvincing with russell t. davies return todoctor whoin 2023 , it would n’t be inconceivable for astrid to arrive back from the dead in the penny-pinching time to come .
2Adelaide Brooke
Captain Adelaide Brooke was the first fair sex to shoot down on Mars , and in short stand as the Tenth Doctor ’s fellow traveller in the instalment " The water of Mars . "
After miss Donna Noble , the Doctor was flimsy and tempestuous at the regulation of the population .
He decide to bring through the animation of the gang on Bowie Base One despite them magnificently conk out on Mars .
Adelaide discord with the Doctor ’s purpose , not believe he deserve the baron to alter prison term like that .
When the Doctor return Adelaide to her household on Earth , she practice self-destruction to insure her timeline would extend the manner it was mean to .
